Note N - Segment Information (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
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| Number of Reportable Segments | 2 | |
| Revenue from Contract with Customer, Including Assessed Tax | $ 118,876 | $ 138,290 |
| Non-US [Member] | ||
| Revenue from Contract with Customer, Including Assessed Tax | 51,964 | 71,290 |
| UNITED STATES | ||
| Revenue from Contract with Customer, Including Assessed Tax | $ 66,912 | $ 67,000 |
| Products Manufactured by NAIE [Member] | Non-US [Member] | Revenue Benchmark [Member] | Product Concentration Risk [Member] | ||
| Concentration Risk, Percentage | 89.00% | 78.00% |
| Products Manufactured by NAIE [Member] | UNITED STATES | ||
| Revenue from Contract with Customer, Including Assessed Tax | $ 0 | $ 0 |
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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